Beater.



E. A. CLARK. BEATER.

I APPLICA-0N FILED [BIBA 28| |913- Ll., Patented Jan. 4, 1916.

2 SHEETS-SHEET l.

E. A. CLARK.

BEATER. APPLICATION FILED FEB. 28, |913.

Patented Jan. 4, 1916.

2 SHEETS-SHEET 2.

ELMER Ai. CLARK, F JOLIET, ILLINOIS.

i :BEA'rEa Specification of Letters Patent.

Patented Jaaa, rara.

Application le February A28, 1913. Serial No. 751,247.

To all whom it may concern l I Be it known that I, ELMER A. CLARK,

citizen ofA the United States, residing at Joli-et, in the county of Will and State of Illinois, have invented certainv new and useful Improvements in Beaters, of which the following is a specification. y This invention relates to 4improvements in the class of beating, mixing or stirring machines that is especially adapted for use in bakerlesin the preparation of cake materials', where the quantities of ingredients are relatively large andthe resultant mass y beater a compound movement which will of `considerable volume, and where it becomes desirable to perform the operations effectively in a Short time. d*

The object of the improvements which I have invented, and which will be hereinafter described in detail, is to produce a machine of the type described, of simple, strong and durable const ruction and which will be convenient in use.

' A lfurther object is to provide a mechanical movement which will rotate the beater member or whip rapidly about its shaft, and at the same time drive it slowly around the interior of the vessel, thus giving the render it most ellici'ent as a mixing device.

A further obJect 1s to so arrange and operate the mechanisms employed, that the whip may be quickly and easily lifted out of the mass of materials in the bowl without'- danger -of spilling or` splashing the contents.

My' invention consists in the-various details of construction which I have shown in .a preferred form linthe accompanying drawing, which forms a part of this application for patent, and in the' following views, Figure. 1 is a front elevation of my improved machine, a portion of the bowl being broken away; Fig. 2 is a view partly in side elevation and partly in section, of

:said machine; Fig. 3 is an enlarged detail of ,the speed-changing lever; Fig. 4 is an enlarged side elevation of `the bowl supporting' ring, showing the locking device therefor; Fig. 5 is a top-plan view. of the bowl-supporting ring,.and Fig. 6 is an enlarged sectional view of the beater shaft and coperating members. Fig. 47 -is a detail of gears.

Referring now to the details of the drawing, represents the base of my machine, to which is bolted through a flange', 8, a 'standvard 8, of hollow rectangular form in crosssection asl shown in Fig. 5. To the upper end of the standard is secured a box-like cast-iron casing' 9, on which are formed journal bearings 9a, 9b, horizontal extensions 9d,- 99, and whichv is provided with detachable cover plates 9, on opposite sides.

Extending through the casing, and journaled in the bearings 9d, qis the main driveshaft 10 which carries the tight and loose pulleys 11. Below theb aft 10, is a second shaft 13, which is journaled in the bearings 9, and is driven from the shaft 10, as will be described.

On the inner end of the shaft 10,)is pinned a bevel gear 12, and on the corresponding the gearlG on the upper end of a sleeve 16b which'isloosely mounted on the lower portion of the shaft 15, and carries 'a gear 16a below thel shaft collar or bearing 18. f

The gears 12, 13, 14 and 1 6 are inclosed within a 2-piece box 17, through which the shaft 15 extends, and in the bottom wall of which isV an opening 17, which registers .withy asimilar gpening 9t inY the extension 9d. The latter has a verticaldownwardly extending Vannular flange 9g which fits within the annular flange 19b on the upper portion of the combined coupling and bearing 19, said flange forming a boxing which incloses the gear 16a on vthe shaft 15 and a gear 21a which is keyed on the upper .end of the whip spindle 21. The-spindle 21 passes downwardly through the Ahollow extension 19a of the bearing 19, through a cup, 22, and a sleeve 23, to thejlower end of which is removably secured the whip 24. Near the upper portion of the spindle 2.1 is an annular collar 21C, and below same 1s an annular groove 21. 'The cup 22 is secured to the spindle by a pin 2lb, as best shown in Fig. 6. The sleeve 23 is counterbored in its upper portion to form a recess .23a in which 1s placed an expansion coil spring 23", onev end of which bears against the isleeve and the other end against the cup 22. The sleeve 23 is also formed with a -linger 23 projecting downwardly from its lower edge, which normally enters the vertical portion of an angular or bayonet slot 21h in the upper portion of the hub 21 of the whip 24. A pin 23*l passes transversely through the spindle 21 and normally Iprojects into the-horizontal portion of said slot 2lb, thereby holding the beater upon the spindle. If it be desired todisconnect vthe whip from the spindle, it is only necessides of the kettle 25. This kettle is removf ably supported within the circular rim 26a of a bracket 26. This bracket -is formed with extensions 26C, vwhich vprovide hinge connections for a pin 27 in the offset bearigs 8b 0n one side of the lower portion of the standard 8. The opposite side of the bracket 26 has an 'extension 26", the end of which terminates in a hook which engages a lug 8 on the corresponding side of the standard when the bracket is in operative position, and is locked in suchposition by a latch consisting of a link 28 pivoted on the lug 8., and carrying at itsfree end a cam 29, as shown in Figs. 4 and 5. The bracket is also provided with a notch 26c in the lower corner of its free end, which engages a corresponding lug 8d on the standard 8, and thus serves to support the bracket against downward and -rearward thrust resulting from the weigh of the kettle 25 and its contents.

The shaft 13 carries a series of pinions 30 of different diameters, which are housed y within the casing 9. The shaft 10 carries a crank-arm lever 31, in which is mounted a pinion 33 which is in mesh with a'pinion 32 on the shaft 1 0. By raising or lowering the lever 31, the pinion 33 may be thrown in mesh withany one of the'gears'30 and thus changing the speed of the shaft 13 and its bevel gear '13 and the gears 16, 16a. 4

In a suitable opening at one side of the casting 19, is inserted a pin 34, the inner end of which presses against the spindle 21 through the expansion of a coil' spring 34h .one end of which is secured to the pin and the other end bea-rs against a plate 34 which is secured over saidv opening. Normally the pin 34 is above the shoulder 21, as shown in Fig. 6, but if vit be desired to 'raise or push outwardly until its inner end clears the shoulder, whereupon the spindle may be raised until the groove 21a is opposite the pin, and the latter will engage the, groove and hold the spindle in its raised position. This elevation of the spindle permits the whip 24 to be easily. removed from the kettle when disconnected at the bayonet joint above described.

The vertical movement of the spindle 21, is permitted by the opening 9r in the extension plate 9 and the sliding connection between thc gear 21n and the spindle, it being understoed that while the gear is splined-on the spindle as shown in Fig. 7, there is a sliding fit. i

AAs the hub 16" of the bevel gear 16 is pinned to the casing or boxing 19, the latter will rotate with said gear, and carry with it the spindle 21 which is arranged eccentrically in respect to the kettle. As the gear 16 meshes-with the pinion 21n on the spindle 21, the latter will be rotated on its axis and thus impart rotary motion to the whip.

The kettle supporting means described permits the kettle to be readily lifted out of the bracket ring 26, and also permits the bracket to be swung around on the pivotal axis represented by the pintle 27 and its bearings S. r v The cup 22 will catch any oil that might leak from the casing 19, and thus prevents possible contamination of the contents of the kettle.

It will be obvious that the arrangemennt of gearing described provides for relatively low speed for the whip in its travel around the sides of the kettle, and high speed for the 'rotation of the whip on its vertical axis, which results in the most effective manipulation of the contents of the kettle. The quick and easy detachment of the whip from the spindle, made possible by the construction shown, not only facilitates its removal from the material in the kettle without spilling or slopping the contents of the latter, but also enables changes to be made in the whips without disturbing or`disconnecting other parts of the mechanism.

Having thus described my invention what 1n testimony whereofg 'ax my signature in the presence of tw., witnesses. upwardly the splndle 21, the pm 34 is pulled CARL Mon'rENsoiv, M. A.-M1LoRD. 

